Step 1 (vol. 1) teaches the verb "to be", pronouns, contractions, questions and answers, time expressions, and more. Step 2 (vol. 2) covers conjugating verbs in the various present, past, and future tenses; making commands and requests; and much more. Step 3 (vol. 3) focuses on using English in the workplace: communication with your coworkers and supervisors, personnel issues, telephone fundamentals, job interviews, raises, promotions, and more. For beginning ESL students, from middle school through adult learners. Ideal for those who are new to English, this set provides lots of practice in the basics of listening, reading, and writing.